Related papers: Derived category and Lie algebras

This paper has been withdrawn by the author, due to possible counter-examples.

The paper is withdrawn by the authors and replaced be an improved and extended version arxiv: 0812.2968

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This paper has been withdrawn by the author(s). Please see arXiv:0711.3910 for revision.

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This paper has been withdrawn by the author due to rewritting and skipping crucial sign errors.

This paper has been superseded by math.AG/0510287 and withdrawn by the author.

This paper has been withdrawn at the author's request.

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn, because it is subsumed by the new preprint arXiv:0806.4540 .

There have been gaps found in the proofs. The paper is withdrawn until further notice.

This paper is withdrawn.

This paper has been withdrawn by the corresponding author because the newest version is now published in Journal of Discrete Algorithms.

This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.

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This paper has been withdrawn by the author since the comments have been withdrawn.

The paper has been withdrawn due to a crucial error in section 3.

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This paper has been withdrawn by the author.